One-dimensional solidification of an alloy with a mushy zone: thermodiffusion and temperature-dependent diffusivity / Alexandrov DV,Aseev DL // JOURNAL OF FLUID MECHANICS. - 2005. - V. 527, l. . - P. 57-66.

ISSN/EISSN:

0022-1120 / нет данных

Type:

Article

Abstract:

The effect of a temperature-dependent solute diffusion coefficient on a model of unidirectional solidification of a binary melt with a quasi-equilibrium mushy (two-phase) zone is studied. The Soret effect (thermodiffusion) is also included in the analysis. The concentration field in the liquid, solid and mushy phases, as well as the rate of solidification and mushy zone thickness, are found analytically as functions of all thermophysical parameters. The role of the nonlinear solute transport is detailed in the analysis. On the basis of analytical solutions, the regime of solidification with a quasi-equilibrium mushy zone is replaced by an equivalent discontinuity surface (frontal) regime with new boundary conditions.

Author keywords:

DILUTE BINARY ALLOY; MORPHOLOGICAL STABILITY; COEFFICIENTS; CONVECTION; MODEL; MELT

DOI:

10.1017/S0022112004003052

Web of Science ID:

ISI:000228618000003

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR 25
Publisher	CAMBRIDGE UNIV PRESS
Address	40 WEST 20TH ST, NEW YORK, NY 10011-4211 USA
Language	English
Keywords-Plus	DILUTE BINARY ALLOY; MORPHOLOGICAL STABILITY; COEFFICIENTS; CONVECTION; MODEL; MELT
Research-Areas	Mechanics; Physics
Web-of-Science-Categories	Mechanics; Physics, Fluids \& Plasmas
Author-Email	Dmitri.Alexandrov@usu.ru
ResearcherID-Numbers	Alexandrov, Dmitri/D-2516-2016
ORCID-Numbers	Alexandrov, Dmitri/0000-0002-6628-745X
Number-of-Cited-References	26
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	5
Journal-ISO	J. Fluid Mech.
Doc-Delivery-Number	919KX